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Finding the Fourth Proportional to 108,798.53, 163,099.31 and 38,661.44

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Solution

The fourth proportional to 108,798.53, 163,099.31 and 38,661.44 is: 57,957.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,798.53 : 163,099.31 = 38,661.44 : x
  2. Step 2: Convert to fraction form
    108,798.53/163,099.31 = 38,661.44/x
  3. Step 3: Cross multiply
    108,798.53x = 163,099.31 × 38,661.44
  4. Step 4: Simplify right side
    108,798.53x = 6,305,653,178.80
  5. Step 5: Solve for x
    x = 6,305,653,178.80/108,798.53
  6. Step 6: Final answer
    x = 57,957.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.